./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0720_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2a0054fd-4f58-48d3-ac58-f285f23bca35/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2a0054fd-4f58-48d3-ac58-f285f23bca35/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2a0054fd-4f58-48d3-ac58-f285f23bca35/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2a0054fd-4f58-48d3-ac58-f285f23bca35/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0720_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_2a0054fd-4f58-48d3-ac58-f285f23bca35/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2a0054fd-4f58-48d3-ac58-f285f23bca35/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2099bda96984d0e4445a07fd627008694b409440 .......................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2a0054fd-4f58-48d3-ac58-f285f23bca35/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2a0054fd-4f58-48d3-ac58-f285f23bca35/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2a0054fd-4f58-48d3-ac58-f285f23bca35/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2a0054fd-4f58-48d3-ac58-f285f23bca35/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0720_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_2a0054fd-4f58-48d3-ac58-f285f23bca35/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2a0054fd-4f58-48d3-ac58-f285f23bca35/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2099bda96984d0e4445a07fd627008694b409440 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 08:47:12,731 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 08:47:12,732 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 08:47:12,738 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 08:47:12,738 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 08:47:12,739 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 08:47:12,739 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 08:47:12,740 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 08:47:12,741 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 08:47:12,741 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 08:47:12,742 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 08:47:12,742 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 08:47:12,742 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 08:47:12,743 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 08:47:12,744 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 08:47:12,744 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 08:47:12,744 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 08:47:12,745 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 08:47:12,746 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 08:47:12,747 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 08:47:12,747 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 08:47:12,748 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 08:47:12,749 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 08:47:12,749 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 08:47:12,749 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 08:47:12,750 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 08:47:12,751 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 08:47:12,751 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 08:47:12,751 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 08:47:12,752 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 08:47:12,752 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 08:47:12,752 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 08:47:12,752 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 08:47:12,753 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 08:47:12,753 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 08:47:12,753 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 08:47:12,754 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2a0054fd-4f58-48d3-ac58-f285f23bca35/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 08:47:12,761 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 08:47:12,761 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 08:47:12,761 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 08:47:12,761 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 08:47:12,762 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 08:47:12,762 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 08:47:12,762 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 08:47:12,762 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 08:47:12,762 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 08:47:12,762 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 08:47:12,762 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 08:47:12,762 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 08:47:12,762 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 08:47:12,763 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 08:47:12,763 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 08:47:12,763 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 08:47:12,763 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 08:47:12,763 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 08:47:12,763 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 08:47:12,763 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 08:47:12,763 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 08:47:12,763 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 08:47:12,764 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 08:47:12,764 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 08:47:12,764 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 08:47:12,764 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 08:47:12,764 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 08:47:12,764 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 08:47:12,764 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 08:47:12,764 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 08:47:12,764 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 08:47:12,764 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 08:47:12,764 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 08:47:12,765 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 08:47:12,765 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 08:47:12,765 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 08:47:12,765 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_2a0054fd-4f58-48d3-ac58-f285f23bca35/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2099bda96984d0e4445a07fd627008694b409440 [2018-12-09 08:47:12,782 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 08:47:12,789 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 08:47:12,791 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 08:47:12,792 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 08:47:12,792 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 08:47:12,792 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2a0054fd-4f58-48d3-ac58-f285f23bca35/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0720_true-unreach-call.c [2018-12-09 08:47:12,826 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2a0054fd-4f58-48d3-ac58-f285f23bca35/bin-2019/utaipan/data/4d1ff5329/b3a24d3f466a40bbbf8eed1aeae083ca/FLAGa3c9d0be7 [2018-12-09 08:47:13,243 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 08:47:13,244 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2a0054fd-4f58-48d3-ac58-f285f23bca35/sv-benchmarks/c/float-newlib/float_req_bl_0720_true-unreach-call.c [2018-12-09 08:47:13,248 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2a0054fd-4f58-48d3-ac58-f285f23bca35/bin-2019/utaipan/data/4d1ff5329/b3a24d3f466a40bbbf8eed1aeae083ca/FLAGa3c9d0be7 [2018-12-09 08:47:13,256 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2a0054fd-4f58-48d3-ac58-f285f23bca35/bin-2019/utaipan/data/4d1ff5329/b3a24d3f466a40bbbf8eed1aeae083ca [2018-12-09 08:47:13,257 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 08:47:13,258 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 08:47:13,259 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 08:47:13,259 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 08:47:13,261 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 08:47:13,262 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:47:13" (1/1) ... [2018-12-09 08:47:13,263 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58f41b83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:47:13, skipping insertion in model container [2018-12-09 08:47:13,263 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:47:13" (1/1) ... [2018-12-09 08:47:13,268 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 08:47:13,280 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 08:47:13,381 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 08:47:13,383 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 08:47:13,400 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 08:47:13,412 INFO L195 MainTranslator]: Completed translation [2018-12-09 08:47:13,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:47:13 WrapperNode [2018-12-09 08:47:13,412 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 08:47:13,413 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 08:47:13,413 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 08:47:13,413 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 08:47:13,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:47:13" (1/1) ... [2018-12-09 08:47:13,423 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:47:13" (1/1) ... [2018-12-09 08:47:13,455 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 08:47:13,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 08:47:13,455 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 08:47:13,456 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 08:47:13,461 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:47:13" (1/1) ... [2018-12-09 08:47:13,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:47:13" (1/1) ... [2018-12-09 08:47:13,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:47:13" (1/1) ... [2018-12-09 08:47:13,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:47:13" (1/1) ... [2018-12-09 08:47:13,468 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:47:13" (1/1) ... [2018-12-09 08:47:13,472 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:47:13" (1/1) ... [2018-12-09 08:47:13,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:47:13" (1/1) ... [2018-12-09 08:47:13,474 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 08:47:13,474 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 08:47:13,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 08:47:13,474 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 08:47:13,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:47:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2a0054fd-4f58-48d3-ac58-f285f23bca35/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 08:47:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 08:47:13,505 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 08:47:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-09 08:47:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 08:47:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-12-09 08:47:13,505 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-12-09 08:47:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 08:47:13,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 08:47:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-09 08:47:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 08:47:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 08:47:13,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 08:47:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 08:47:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 08:47:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-12-09 08:47:13,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-12-09 08:47:13,670 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 08:47:13,670 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-09 08:47:13,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:47:13 BoogieIcfgContainer [2018-12-09 08:47:13,671 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 08:47:13,672 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 08:47:13,672 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 08:47:13,674 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 08:47:13,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 08:47:13" (1/3) ... [2018-12-09 08:47:13,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@457a056e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:47:13, skipping insertion in model container [2018-12-09 08:47:13,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:47:13" (2/3) ... [2018-12-09 08:47:13,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@457a056e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:47:13, skipping insertion in model container [2018-12-09 08:47:13,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:47:13" (3/3) ... [2018-12-09 08:47:13,677 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0720_true-unreach-call.c [2018-12-09 08:47:13,682 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 08:47:13,686 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 08:47:13,695 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 08:47:13,712 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 08:47:13,712 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 08:47:13,712 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 08:47:13,712 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 08:47:13,712 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 08:47:13,713 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 08:47:13,713 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 08:47:13,713 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 08:47:13,723 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2018-12-09 08:47:13,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-09 08:47:13,726 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 08:47:13,727 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 08:47:13,728 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 08:47:13,731 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:47:13,731 INFO L82 PathProgramCache]: Analyzing trace with hash 2075828111, now seen corresponding path program 1 times [2018-12-09 08:47:13,732 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 08:47:13,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:47:13,760 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 08:47:13,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:47:13,760 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 08:47:13,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 08:47:13,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 08:47:13,817 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 08:47:13,817 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 08:47:13,817 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 08:47:13,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 08:47:13,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 08:47:13,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 08:47:13,828 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 2 states. [2018-12-09 08:47:13,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 08:47:13,841 INFO L93 Difference]: Finished difference Result 84 states and 118 transitions. [2018-12-09 08:47:13,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 08:47:13,842 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-12-09 08:47:13,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 08:47:13,849 INFO L225 Difference]: With dead ends: 84 [2018-12-09 08:47:13,849 INFO L226 Difference]: Without dead ends: 42 [2018-12-09 08:47:13,851 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 08:47:13,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-12-09 08:47:13,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-12-09 08:47:13,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-12-09 08:47:13,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 52 transitions. [2018-12-09 08:47:13,873 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 52 transitions. Word has length 21 [2018-12-09 08:47:13,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 08:47:13,873 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 52 transitions. [2018-12-09 08:47:13,874 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 08:47:13,874 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 52 transitions. [2018-12-09 08:47:13,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 08:47:13,874 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 08:47:13,874 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 08:47:13,874 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 08:47:13,875 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:47:13,875 INFO L82 PathProgramCache]: Analyzing trace with hash 768569323, now seen corresponding path program 1 times [2018-12-09 08:47:13,875 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 08:47:13,875 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:47:13,876 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 08:47:13,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:47:13,876 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 08:47:13,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 08:47:13,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 08:47:13,929 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 08:47:13,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 08:47:13 BoogieIcfgContainer [2018-12-09 08:47:13,946 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 08:47:13,946 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 08:47:13,947 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 08:47:13,947 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 08:47:13,947 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:47:13" (3/4) ... [2018-12-09 08:47:13,950 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 08:47:13,950 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 08:47:13,951 INFO L168 Benchmark]: Toolchain (without parser) took 693.00 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 67.1 MB). Free memory was 958.8 MB in the beginning and 1.0 GB in the end (delta: -41.9 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. [2018-12-09 08:47:13,952 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 08:47:13,953 INFO L168 Benchmark]: CACSL2BoogieTranslator took 153.47 ms. Allocated memory is still 1.0 GB. Free memory was 958.8 MB in the beginning and 948.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 08:47:13,953 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.49 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 67.1 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -113.2 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2018-12-09 08:47:13,954 INFO L168 Benchmark]: Boogie Preprocessor took 18.69 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. [2018-12-09 08:47:13,954 INFO L168 Benchmark]: RCFGBuilder took 197.10 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. [2018-12-09 08:47:13,955 INFO L168 Benchmark]: TraceAbstraction took 274.28 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2018-12-09 08:47:13,955 INFO L168 Benchmark]: Witness Printer took 3.77 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 08:47:13,958 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 153.47 ms. Allocated memory is still 1.0 GB. Free memory was 958.8 MB in the beginning and 948.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.49 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 67.1 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -113.2 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.69 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 197.10 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 274.28 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * Witness Printer took 3.77 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 96]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 13, overapproximation of someBinaryArithmeticFLOAToperation at line 30, overapproximation of bitwiseAnd at line 27. Possible FailurePath: [L15] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [\old(one_sqrt)=6442450949, \old(tiny_sqrt)=6442450946, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L91] float x = 0.0f / 0.0f; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L92] CALL, EXPR __ieee754_sqrtf(x) VAL [\old(x)=6442450947, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L18] float z; [L19] __uint32_t r, hx; [L20] __int32_t ix, s, q, m, t, i; VAL [\old(x)=6442450947, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450947] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (ix) = gf_u.word [L27] hx = ix & 0x7fffffff VAL [\old(x)=6442450947, ix=-2147483648, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450947] [L29] COND TRUE !((hx) < 0x7f800000L) [L30] return x * x + x; VAL [\old(x)=6442450947, hx=2139095040, ix=-2147483648, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450947] [L92] RET, EXPR __ieee754_sqrtf(x) VAL [__ieee754_sqrtf(x)=6442450948, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450947] [L92] float res = __ieee754_sqrtf(x); [L95] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450948, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L13] return x != x; VAL [\old(x)=6442450948, \result=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450948] [L95] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, one_sqrt=1, res=6442450948, tiny_sqrt=1/1000000000000000000000000000000, x=6442450947] [L95] COND TRUE !isnan_float(res) [L96] __VERIFIER_error() VAL [one_sqrt=1, res=6442450948, tiny_sqrt=1/1000000000000000000000000000000, x=6442450947] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 46 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 56 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 400 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-09 08:47:15,210 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 08:47:15,212 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 08:47:15,219 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 08:47:15,219 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 08:47:15,220 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 08:47:15,221 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 08:47:15,222 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 08:47:15,223 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 08:47:15,224 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 08:47:15,224 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 08:47:15,224 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 08:47:15,225 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 08:47:15,226 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 08:47:15,226 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 08:47:15,227 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 08:47:15,228 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 08:47:15,229 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 08:47:15,230 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 08:47:15,231 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 08:47:15,232 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 08:47:15,233 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 08:47:15,234 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 08:47:15,235 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 08:47:15,235 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 08:47:15,235 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 08:47:15,236 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 08:47:15,237 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 08:47:15,237 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 08:47:15,238 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 08:47:15,238 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 08:47:15,239 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 08:47:15,239 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 08:47:15,239 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 08:47:15,239 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 08:47:15,240 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 08:47:15,240 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2a0054fd-4f58-48d3-ac58-f285f23bca35/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-09 08:47:15,250 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 08:47:15,251 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 08:47:15,251 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 08:47:15,251 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 08:47:15,251 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 08:47:15,251 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 08:47:15,252 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 08:47:15,252 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 08:47:15,252 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 08:47:15,252 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 08:47:15,252 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 08:47:15,252 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 08:47:15,253 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 08:47:15,253 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 08:47:15,253 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 08:47:15,253 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 08:47:15,253 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 08:47:15,253 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 08:47:15,253 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 08:47:15,254 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 08:47:15,254 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 08:47:15,254 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 08:47:15,254 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 08:47:15,254 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 08:47:15,254 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 08:47:15,254 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 08:47:15,254 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 08:47:15,254 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 08:47:15,254 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 08:47:15,255 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 08:47:15,255 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 08:47:15,255 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-09 08:47:15,255 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 08:47:15,255 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 08:47:15,255 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 08:47:15,255 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_2a0054fd-4f58-48d3-ac58-f285f23bca35/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2099bda96984d0e4445a07fd627008694b409440 [2018-12-09 08:47:15,279 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 08:47:15,289 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 08:47:15,291 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 08:47:15,292 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 08:47:15,293 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 08:47:15,293 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2a0054fd-4f58-48d3-ac58-f285f23bca35/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0720_true-unreach-call.c [2018-12-09 08:47:15,332 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2a0054fd-4f58-48d3-ac58-f285f23bca35/bin-2019/utaipan/data/b0b42b163/fcc2de8e5afb408fbf9c93cd20d219d4/FLAGddfce94d3 [2018-12-09 08:47:15,717 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 08:47:15,717 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2a0054fd-4f58-48d3-ac58-f285f23bca35/sv-benchmarks/c/float-newlib/float_req_bl_0720_true-unreach-call.c [2018-12-09 08:47:15,721 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2a0054fd-4f58-48d3-ac58-f285f23bca35/bin-2019/utaipan/data/b0b42b163/fcc2de8e5afb408fbf9c93cd20d219d4/FLAGddfce94d3 [2018-12-09 08:47:15,729 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2a0054fd-4f58-48d3-ac58-f285f23bca35/bin-2019/utaipan/data/b0b42b163/fcc2de8e5afb408fbf9c93cd20d219d4 [2018-12-09 08:47:15,731 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 08:47:15,731 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 08:47:15,732 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 08:47:15,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 08:47:15,734 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 08:47:15,734 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:47:15" (1/1) ... [2018-12-09 08:47:15,736 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@284ba15b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:47:15, skipping insertion in model container [2018-12-09 08:47:15,736 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:47:15" (1/1) ... [2018-12-09 08:47:15,741 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 08:47:15,753 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 08:47:15,856 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 08:47:15,861 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 08:47:15,880 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 08:47:15,896 INFO L195 MainTranslator]: Completed translation [2018-12-09 08:47:15,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:47:15 WrapperNode [2018-12-09 08:47:15,896 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 08:47:15,896 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 08:47:15,896 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 08:47:15,897 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 08:47:15,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:47:15" (1/1) ... [2018-12-09 08:47:15,908 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:47:15" (1/1) ... [2018-12-09 08:47:15,912 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 08:47:15,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 08:47:15,913 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 08:47:15,913 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 08:47:15,918 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:47:15" (1/1) ... [2018-12-09 08:47:15,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:47:15" (1/1) ... [2018-12-09 08:47:15,921 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:47:15" (1/1) ... [2018-12-09 08:47:15,921 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:47:15" (1/1) ... [2018-12-09 08:47:15,961 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:47:15" (1/1) ... [2018-12-09 08:47:15,965 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:47:15" (1/1) ... [2018-12-09 08:47:15,966 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:47:15" (1/1) ... [2018-12-09 08:47:15,968 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 08:47:15,968 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 08:47:15,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 08:47:15,968 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 08:47:15,969 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:47:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2a0054fd-4f58-48d3-ac58-f285f23bca35/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 08:47:16,000 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 08:47:16,000 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 08:47:16,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-09 08:47:16,001 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-12-09 08:47:16,001 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-12-09 08:47:16,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 08:47:16,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 08:47:16,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 08:47:16,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-09 08:47:16,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 08:47:16,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 08:47:16,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-09 08:47:16,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-09 08:47:16,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 08:47:16,002 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-12-09 08:47:16,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-12-09 08:47:16,142 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 08:47:16,600 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 08:47:16,600 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-09 08:47:16,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:47:16 BoogieIcfgContainer [2018-12-09 08:47:16,600 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 08:47:16,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 08:47:16,601 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 08:47:16,602 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 08:47:16,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 08:47:15" (1/3) ... [2018-12-09 08:47:16,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e51cdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:47:16, skipping insertion in model container [2018-12-09 08:47:16,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:47:15" (2/3) ... [2018-12-09 08:47:16,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e51cdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:47:16, skipping insertion in model container [2018-12-09 08:47:16,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:47:16" (3/3) ... [2018-12-09 08:47:16,604 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0720_true-unreach-call.c [2018-12-09 08:47:16,610 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 08:47:16,614 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 08:47:16,623 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 08:47:16,643 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 08:47:16,643 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 08:47:16,643 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 08:47:16,643 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 08:47:16,644 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 08:47:16,644 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 08:47:16,644 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 08:47:16,644 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 08:47:16,644 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 08:47:16,654 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2018-12-09 08:47:16,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-09 08:47:16,658 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 08:47:16,659 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 08:47:16,660 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 08:47:16,663 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:47:16,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1639632096, now seen corresponding path program 1 times [2018-12-09 08:47:16,666 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 08:47:16,666 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2a0054fd-4f58-48d3-ac58-f285f23bca35/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-09 08:47:16,671 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 08:47:16,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 08:47:16,781 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 08:47:16,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 08:47:16,793 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 08:47:16,802 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 08:47:16,802 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 08:47:16,804 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 08:47:16,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 08:47:16,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 08:47:16,813 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2018-12-09 08:47:16,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 08:47:16,825 INFO L93 Difference]: Finished difference Result 82 states and 116 transitions. [2018-12-09 08:47:16,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 08:47:16,826 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-12-09 08:47:16,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 08:47:16,832 INFO L225 Difference]: With dead ends: 82 [2018-12-09 08:47:16,832 INFO L226 Difference]: Without dead ends: 41 [2018-12-09 08:47:16,834 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 08:47:16,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-12-09 08:47:16,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-12-09 08:47:16,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-09 08:47:16,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2018-12-09 08:47:16,856 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 51 transitions. Word has length 20 [2018-12-09 08:47:16,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 08:47:16,857 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 51 transitions. [2018-12-09 08:47:16,857 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 08:47:16,857 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2018-12-09 08:47:16,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-09 08:47:16,857 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 08:47:16,858 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 08:47:16,858 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 08:47:16,858 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:47:16,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1844841631, now seen corresponding path program 1 times [2018-12-09 08:47:16,858 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 08:47:16,858 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2a0054fd-4f58-48d3-ac58-f285f23bca35/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-09 08:47:16,862 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 08:47:16,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 08:47:16,958 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 08:47:17,971 WARN L180 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2018-12-09 08:47:18,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 08:47:18,670 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 08:47:18,677 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 08:47:18,678 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-09 08:47:18,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 08:47:18,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 08:47:18,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-09 08:47:18,679 INFO L87 Difference]: Start difference. First operand 41 states and 51 transitions. Second operand 9 states. [2018-12-09 08:47:20,823 WARN L180 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 9 [2018-12-09 08:47:22,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 08:47:22,638 INFO L93 Difference]: Finished difference Result 48 states and 58 transitions. [2018-12-09 08:47:22,638 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 08:47:22,639 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2018-12-09 08:47:22,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 08:47:22,639 INFO L225 Difference]: With dead ends: 48 [2018-12-09 08:47:22,639 INFO L226 Difference]: Without dead ends: 41 [2018-12-09 08:47:22,640 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-12-09 08:47:22,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-12-09 08:47:22,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-12-09 08:47:22,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-09 08:47:22,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2018-12-09 08:47:22,646 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 21 [2018-12-09 08:47:22,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 08:47:22,646 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions. [2018-12-09 08:47:22,646 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 08:47:22,646 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2018-12-09 08:47:22,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 08:47:22,646 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 08:47:22,647 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 08:47:22,647 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 08:47:22,647 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:47:22,647 INFO L82 PathProgramCache]: Analyzing trace with hash 1013290210, now seen corresponding path program 1 times [2018-12-09 08:47:22,647 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 08:47:22,647 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2a0054fd-4f58-48d3-ac58-f285f23bca35/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-12-09 08:47:22,650 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 08:47:22,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 08:47:22,676 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 08:47:22,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 08:47:22,746 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 08:47:22,753 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 08:47:22,754 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 08:47:22,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 08:47:22,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 08:47:22,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 08:47:22,754 INFO L87 Difference]: Start difference. First operand 41 states and 50 transitions. Second operand 7 states. [2018-12-09 08:47:23,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 08:47:23,372 INFO L93 Difference]: Finished difference Result 56 states and 65 transitions. [2018-12-09 08:47:23,373 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 08:47:23,373 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2018-12-09 08:47:23,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 08:47:23,375 INFO L225 Difference]: With dead ends: 56 [2018-12-09 08:47:23,375 INFO L226 Difference]: Without dead ends: 46 [2018-12-09 08:47:23,375 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-12-09 08:47:23,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-12-09 08:47:23,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 41. [2018-12-09 08:47:23,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-09 08:47:23,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2018-12-09 08:47:23,381 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 22 [2018-12-09 08:47:23,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 08:47:23,381 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2018-12-09 08:47:23,381 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 08:47:23,381 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2018-12-09 08:47:23,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-09 08:47:23,382 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 08:47:23,382 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 08:47:23,382 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 08:47:23,383 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:47:23,383 INFO L82 PathProgramCache]: Analyzing trace with hash -1364989955, now seen corresponding path program 1 times [2018-12-09 08:47:23,383 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 08:47:23,383 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2a0054fd-4f58-48d3-ac58-f285f23bca35/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-12-09 08:47:23,386 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 08:47:23,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 08:47:23,545 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 08:47:25,428 WARN L180 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2018-12-09 08:47:26,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 08:47:26,925 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 08:47:26,934 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 08:47:26,934 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-09 08:47:26,934 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 08:47:26,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 08:47:26,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-09 08:47:26,934 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand 9 states. [2018-12-09 08:47:30,574 WARN L180 SmtUtils]: Spent 1.43 s on a formula simplification that was a NOOP. DAG size: 9 [2018-12-09 08:47:32,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 08:47:32,679 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2018-12-09 08:47:32,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 08:47:32,679 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2018-12-09 08:47:32,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 08:47:32,680 INFO L225 Difference]: With dead ends: 48 [2018-12-09 08:47:32,680 INFO L226 Difference]: Without dead ends: 41 [2018-12-09 08:47:32,680 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-12-09 08:47:32,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-12-09 08:47:32,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-12-09 08:47:32,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-09 08:47:32,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 48 transitions. [2018-12-09 08:47:32,684 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 48 transitions. Word has length 23 [2018-12-09 08:47:32,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 08:47:32,684 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 48 transitions. [2018-12-09 08:47:32,685 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 08:47:32,685 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2018-12-09 08:47:32,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-12-09 08:47:32,685 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 08:47:32,685 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 08:47:32,686 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 08:47:32,686 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:47:32,686 INFO L82 PathProgramCache]: Analyzing trace with hash -735101232, now seen corresponding path program 1 times [2018-12-09 08:47:32,686 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 08:47:32,686 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2a0054fd-4f58-48d3-ac58-f285f23bca35/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-12-09 08:47:32,689 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 08:47:32,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 08:47:32,724 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 08:47:32,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 08:47:32,801 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 08:47:32,809 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 08:47:32,809 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 08:47:32,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 08:47:32,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 08:47:32,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 08:47:32,809 INFO L87 Difference]: Start difference. First operand 41 states and 48 transitions. Second operand 7 states. [2018-12-09 08:47:33,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 08:47:33,079 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions. [2018-12-09 08:47:33,080 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 08:47:33,080 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2018-12-09 08:47:33,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 08:47:33,080 INFO L225 Difference]: With dead ends: 44 [2018-12-09 08:47:33,080 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 08:47:33,081 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-12-09 08:47:33,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 08:47:33,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 08:47:33,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 08:47:33,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 08:47:33,081 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2018-12-09 08:47:33,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 08:47:33,081 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 08:47:33,081 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 08:47:33,081 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 08:47:33,082 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 08:47:33,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 08:47:33,191 INFO L448 ceAbstractionStarter]: For program point isnan_floatFINAL(line 13) no Hoare annotation was computed. [2018-12-09 08:47:33,191 INFO L451 ceAbstractionStarter]: At program point isnan_floatENTRY(line 13) the Hoare annotation is: true [2018-12-09 08:47:33,191 INFO L448 ceAbstractionStarter]: For program point isnan_floatEXIT(line 13) no Hoare annotation was computed. [2018-12-09 08:47:33,191 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 08:47:33,191 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-09 08:47:33,191 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 08:47:33,191 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 08:47:33,191 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 08:47:33,191 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 08:47:33,192 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 08:47:33,192 INFO L448 ceAbstractionStarter]: For program point L96(line 96) no Hoare annotation was computed. [2018-12-09 08:47:33,192 INFO L444 ceAbstractionStarter]: At program point L95(line 95) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= main_~res~0 (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0)) (= main_~x~0 .cse0))) [2018-12-09 08:47:33,192 INFO L448 ceAbstractionStarter]: For program point L95-1(lines 95 98) no Hoare annotation was computed. [2018-12-09 08:47:33,192 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 84 101) the Hoare annotation is: true [2018-12-09 08:47:33,192 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 84 101) no Hoare annotation was computed. [2018-12-09 08:47:33,192 INFO L444 ceAbstractionStarter]: At program point L92(line 92) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) [2018-12-09 08:47:33,192 INFO L448 ceAbstractionStarter]: For program point L92-1(line 92) no Hoare annotation was computed. [2018-12-09 08:47:33,192 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 84 101) no Hoare annotation was computed. [2018-12-09 08:47:33,192 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 96) no Hoare annotation was computed. [2018-12-09 08:47:33,192 INFO L448 ceAbstractionStarter]: For program point L64(lines 64 73) no Hoare annotation was computed. [2018-12-09 08:47:33,192 INFO L448 ceAbstractionStarter]: For program point L32(lines 32 33) no Hoare annotation was computed. [2018-12-09 08:47:33,193 INFO L444 ceAbstractionStarter]: At program point L53-2(lines 53 62) the Hoare annotation is: (and (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (bvult (bvand (_ bv2147483647 32) __ieee754_sqrtf_~ix~0) (_ bv2139095040 32)) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|))) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (bvand (_ bv2147483647 32) __ieee754_sqrtf_~ix~0) __ieee754_sqrtf_~hx~0) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|)))) [2018-12-09 08:47:33,193 INFO L448 ceAbstractionStarter]: For program point L53-3(lines 17 82) no Hoare annotation was computed. [2018-12-09 08:47:33,193 INFO L451 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 17 82) the Hoare annotation is: true [2018-12-09 08:47:33,193 INFO L448 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-12-09 08:47:33,193 INFO L448 ceAbstractionStarter]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2018-12-09 08:47:33,193 INFO L448 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 17 82) no Hoare annotation was computed. [2018-12-09 08:47:33,193 INFO L448 ceAbstractionStarter]: For program point L66(lines 66 72) no Hoare annotation was computed. [2018-12-09 08:47:33,193 INFO L448 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2018-12-09 08:47:33,193 INFO L448 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 17 82) no Hoare annotation was computed. [2018-12-09 08:47:33,193 INFO L448 ceAbstractionStarter]: For program point L38(lines 38 42) no Hoare annotation was computed. [2018-12-09 08:47:33,193 INFO L448 ceAbstractionStarter]: For program point L38-2(lines 38 42) no Hoare annotation was computed. [2018-12-09 08:47:33,193 INFO L448 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-12-09 08:47:33,193 INFO L448 ceAbstractionStarter]: For program point L55(lines 55 59) no Hoare annotation was computed. [2018-12-09 08:47:33,193 INFO L448 ceAbstractionStarter]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2018-12-09 08:47:33,193 INFO L448 ceAbstractionStarter]: For program point L55-2(lines 55 59) no Hoare annotation was computed. [2018-12-09 08:47:33,194 INFO L444 ceAbstractionStarter]: At program point L22-2(lines 22 26) the Hoare annotation is: (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x) [2018-12-09 08:47:33,194 INFO L448 ceAbstractionStarter]: For program point L22-3(lines 22 26) no Hoare annotation was computed. [2018-12-09 08:47:33,194 INFO L448 ceAbstractionStarter]: For program point L76-1(lines 76 80) no Hoare annotation was computed. [2018-12-09 08:47:33,194 INFO L444 ceAbstractionStarter]: At program point L76-2(lines 76 80) the Hoare annotation is: (and (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (bvult (bvand (_ bv2147483647 32) __ieee754_sqrtf_~ix~0) (_ bv2139095040 32)) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|))) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (bvand (_ bv2147483647 32) __ieee754_sqrtf_~ix~0) __ieee754_sqrtf_~hx~0) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|)))) [2018-12-09 08:47:33,194 INFO L448 ceAbstractionStarter]: For program point L76-3(lines 76 80) no Hoare annotation was computed. [2018-12-09 08:47:33,194 INFO L448 ceAbstractionStarter]: For program point L39-2(lines 39 40) no Hoare annotation was computed. [2018-12-09 08:47:33,194 INFO L444 ceAbstractionStarter]: At program point L39-3(lines 39 40) the Hoare annotation is: (and (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (bvult (bvand (_ bv2147483647 32) __ieee754_sqrtf_~ix~0) (_ bv2139095040 32)) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|))) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (bvand (_ bv2147483647 32) __ieee754_sqrtf_~ix~0) __ieee754_sqrtf_~hx~0) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|)))) [2018-12-09 08:47:33,194 INFO L448 ceAbstractionStarter]: For program point L68(lines 68 71) no Hoare annotation was computed. [2018-12-09 08:47:33,194 INFO L448 ceAbstractionStarter]: For program point L39-4(lines 39 40) no Hoare annotation was computed. [2018-12-09 08:47:33,197 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,198 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,198 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,198 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,198 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,199 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,199 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,199 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,203 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,203 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,203 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,203 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,203 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,204 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,204 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,204 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,205 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,205 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,205 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,205 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,205 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,205 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,205 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,205 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,206 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,206 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,206 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,206 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,206 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,206 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,206 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,207 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,207 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,207 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,207 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,207 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,207 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,208 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,208 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,208 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,208 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,208 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,208 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,208 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,209 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,209 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,209 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,209 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 08:47:33 BoogieIcfgContainer [2018-12-09 08:47:33,210 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 08:47:33,210 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 08:47:33,210 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 08:47:33,211 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 08:47:33,211 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:47:16" (3/4) ... [2018-12-09 08:47:33,213 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 08:47:33,217 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-12-09 08:47:33,217 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 08:47:33,218 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 08:47:33,218 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-12-09 08:47:33,220 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2018-12-09 08:47:33,220 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-12-09 08:47:33,221 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-09 08:47:33,237 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-09 08:47:33,237 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\old(x) == x && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvult32(~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0), 2139095040bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x))) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) [2018-12-09 08:47:33,237 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\old(x) == x && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvult32(~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0), 2139095040bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x))) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) [2018-12-09 08:47:33,238 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\old(x) == x && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvult32(~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0), 2139095040bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x))) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) [2018-12-09 08:47:33,251 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_2a0054fd-4f58-48d3-ac58-f285f23bca35/bin-2019/utaipan/witness.graphml [2018-12-09 08:47:33,251 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 08:47:33,252 INFO L168 Benchmark]: Toolchain (without parser) took 17521.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 942.0 MB in the beginning and 891.8 MB in the end (delta: 50.2 MB). Peak memory consumption was 187.1 MB. Max. memory is 11.5 GB. [2018-12-09 08:47:33,252 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 08:47:33,253 INFO L168 Benchmark]: CACSL2BoogieTranslator took 164.23 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 925.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-09 08:47:33,253 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.98 ms. Allocated memory is still 1.0 GB. Free memory is still 925.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 08:47:33,253 INFO L168 Benchmark]: Boogie Preprocessor took 55.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 925.9 MB in the beginning and 1.1 GB in the end (delta: -199.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2018-12-09 08:47:33,253 INFO L168 Benchmark]: RCFGBuilder took 632.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. [2018-12-09 08:47:33,253 INFO L168 Benchmark]: TraceAbstraction took 16609.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 898.6 MB in the end (delta: 201.4 MB). Peak memory consumption was 201.4 MB. Max. memory is 11.5 GB. [2018-12-09 08:47:33,254 INFO L168 Benchmark]: Witness Printer took 41.06 ms. Allocated memory is still 1.2 GB. Free memory was 898.6 MB in the beginning and 891.8 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-09 08:47:33,255 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 164.23 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 925.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.98 ms. Allocated memory is still 1.0 GB. Free memory is still 925.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 55.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 925.9 MB in the beginning and 1.1 GB in the end (delta: -199.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 632.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 16609.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 898.6 MB in the end (delta: 201.4 MB). Peak memory consumption was 201.4 MB. Max. memory is 11.5 GB. * Witness Printer took 41.06 ms. Allocated memory is still 1.2 GB. Free memory was 898.6 MB in the beginning and 891.8 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 96]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 76]: Loop Invariant [2018-12-09 08:47:33,258 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,258 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,258 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,258 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,258 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,258 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,258 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,258 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,259 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,259 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,259 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,259 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,259 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,259 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,259 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,259 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: (\old(x) == x && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvult32(~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0), 2139095040bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x))) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 39]: Loop Invariant [2018-12-09 08:47:33,260 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,260 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,260 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,260 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,260 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,260 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,260 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,261 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,261 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,261 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,261 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,261 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,261 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,261 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,261 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,261 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: (\old(x) == x && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvult32(~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0), 2139095040bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x))) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) - InvariantResult [Line: 53]: Loop Invariant [2018-12-09 08:47:33,262 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,262 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,262 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,262 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,262 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,262 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,262 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,262 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,263 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,263 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,263 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,263 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,263 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,263 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,263 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 08:47:33,263 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: (\old(x) == x && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvult32(~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0), 2139095040bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x))) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 45 locations, 1 error locations. SAFE Result, 16.5s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 10.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 210 SDtfs, 245 SDslu, 716 SDs, 0 SdLazy, 206 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 130 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 10.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 16 PreInvPairs, 23 NumberOfFragments, 148 HoareAnnotationTreeSize, 16 FomulaSimplifications, 146 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 32 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.2s InterpolantComputationTime, 119 NumberOfCodeBlocks, 119 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 114 ConstructedInterpolants, 19 QuantifiedInterpolants, 17115 SizeOfPredicates, 16 NumberOfNonLiveVariables, 322 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...